<?

function get_related($iblock_id, $id)
{
	$res = CIBlockElement::GetList(Array("NAME" => "ASC"), Array("IBLOCK_ID" => $iblock_id, "ID" => $id, "ACTIVE" => "Y"), false, Array("nPageSize" => 1000));

	$ar_res = Array();
	while ($obElement = $res->GetNextElement())
	{
		$ar_res = $obElement->GetFields();
		$ar_res['PROPERTIES'] = $obElement->GetProperties();
	}

	return $ar_res;
}

function get_related_array($iblock_id, $ids)
{
	$ar_res = Array();

	foreach($ids AS $id)
	{
		$res = CIBlockElement::GetList(Array("NAME" => "ASC"), Array("IBLOCK_ID" => $iblock_id, "ID" => $id, "ACTIVE" => "Y"), false, Array("nPageSize" => 1000));

		while ($obElement = $res->GetNextElement())
		{
			$ar_res_element = $obElement->GetFields();
			$ar_res_element['PROPERTIES'] = $obElement->GetProperties();
			$ar_res[] = $ar_res_element;
		}
	}

	return $ar_res;
}

function get_ext_from_mime($mime)
	{
	$mime_map = [
		'application/x-compressed' => '7zip',
		'image/bmp' => 'bmp',
		'image/x-bmp' => 'bmp',
		'image/x-bitmap' => 'bmp',
		'image/x-xbitmap' => 'bmp',
		'image/x-win-bitmap' => 'bmp',
		'image/x-windows-bmp' => 'bmp',
		'image/ms-bmp' => 'bmp',
		'image/x-ms-bmp' => 'bmp',
		'application/bmp' => 'bmp',
		'application/x-bmp' => 'bmp',
		'application/x-win-bitmap' => 'bmp',
		'text/x-comma-separated-values' => 'csv',
		'text/comma-separated-values' => 'csv',
		'application/vnd.msexcel' => 'csv',
		'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => 'docx',
		'application/x-msdownload' => 'exe',
		'image/gif' => 'gif',
		'application/x-gzip' => 'gzip',
		'text/html' => 'html',
		'image/jpeg' => 'jpeg',
		'image/pjpeg' => 'jpeg',
		'application/pdf' => 'pdf',
		'application/octet-stream' => 'pdf',
		'image/png' => 'png',
		'image/x-png' => 'png',
		'application/powerpoint' => 'ppt',
		'application/vnd.ms-powerpoint' => 'ppt',
		'application/vnd.ms-office' => 'ppt',
		'application/msword' => 'doc',
		'application/vnd.openxmlformats-officedocument.presentationml.presentation' => 'pptx',
		'application/x-rar' => 'rar',
		'application/rar' => 'rar',
		'application/x-rar-compressed' => 'rar',
		'text/rtf' => 'rtf',
		'text/richtext' => 'rtx',
		'application/x-tar' => 'tar',
		'application/x-gzip-compressed' => 'tgz',
		'image/tiff' => 'tiff',
		'text/plain' => 'txt',
		'application/excel' => 'xl',
		'application/msexcel' => 'xls',
		'application/x-msexcel' => 'xls',
		'application/x-ms-excel' => 'xls',
		'application/x-excel' => 'xls',
		'application/x-dos_ms_excel' => 'xls',
		'application/xls' => 'xls',
		'application/x-xls' => 'xls',
		'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'xlsx',
		'application/vnd.ms-excel' => 'xlsx',
		'application/xml' => 'xml',
		'text/xml' => 'xml',
		'text/xsl' => 'xsl',
		'application/xspf+xml' => 'xspf',
		'application/x-zip' => 'zip',
		'application/zip' => 'zip',
		'application/x-zip-compressed' => 'zip',
		'application/s-compressed' => 'zip',
		'multipart/x-zip' => 'zip',
	];

	return isset($mime_map[ $mime ]) ? $mime_map[ $mime ] : false;
}

AddEventHandler("main", "OnEpilog", "OnEpilogHandler", 1);
function OnEpilogHandler()
{
	if (defined('ERROR_404') && ERROR_404 == 'Y')
	{
		global $APPLICATION;
		$APPLICATION->RestartBuffer();
		include $_SERVER['DOCUMENT_ROOT'].'/local/templates/404/header.php';
		include $_SERVER['DOCUMENT_ROOT'].'/404.php';
		include $_SERVER['DOCUMENT_ROOT'].'/local/templates/404/footer.php';
	}
}

?>